Ok, I'm finalising a WordPress site with my my custom theme. The URL is a temporary one provided by the hosting provider, I'll call it www.tempdomain.com for now. In the 'General settings' the WordPress Address (URL) and Site Address (URL) it says www.tempdomain.com.
When I want to use www.livedomain.com do just replace www.tempdomain.com with www.livedomain.com, logout and login back in with the new URL?
Just so we are clear, I'm not moving servers, just adjusting the URL of the site?